![]() ![]() If you must continue using the legacy Jetty-based implementation, include the browsermob-core-legacy artifact instead of browsermob-core. The new interface provides additional functionality and is compatible with both the legacy Jetty-based ProxyServer implementation (with some exceptions) and the new LittleProxy implementation. LegacyProxyServer will not be supported after 3.0 is released, so we recommend migrating to the BrowserMobProxy interface as soon as possible. Almost all deprecated 2.0.0 methods are supported by the // new BrowserMobProxyServerLegacyAdapter implementation, so in most cases, // no further code changes are necessary // To use the LittleProxy-powered 2.1.5 release, simply change to // the LegacyProxyServer interface and the adapter for the new // LittleProxy-based implementation: LegacyProxyServer proxyServer = new BrowserMobProxyServerLegacyAdapter() With the Jetty-based 2.0.0 release, BMP was created like this: ProxyServer proxyServer = new ProxyServer() This means you can switch to the LittleProxy-powered implementation with minimal change to existing code ( with the exception of interceptors): The new LittleProxy-based implementation will implement LegacyProxyServer for all 2.1.x releases. The legacy interface, implicitly defined by the ProxyServer class, has been extracted into .LegacyProxyServer and is now officially deprecated. Using the LittleProxy implementation with 2.0.0 code We highly recommend migrating existing code to the BrowserMobProxy interface using the BrowserMobProxyServer class. To ease migration, both the legacy (Jetty-based) ProxyServer class and the new, LittleProxy-powered BrowserMobProxy class support the new BrowserMobProxy interface. The new interface defines the functionality that BrowserMob Proxy will support in future releases (including 3.0+). More stable and more powerful than the legacy Jetty back-end.īrowserMob Proxy 2.1 includes a new BrowserMobProxy interface to interact with BrowserMob Proxy programmatically. The new interface will completely replace the legacy 2.0 ProxyServer contract in version 3.0 and higher. Separate REST API and Embedded Mode modules.We highly recommend that existing code migrate to the new implementation. The legacy implementation is no longer actively supported all new code should use BrowserMobProxyServer. The new BrowserMobProxyServer class has replaced the legacy ProxyServer implementation. We check that new properties are not writeable or enumerable.The "port" is the port of the newly-created proxy instance, so configure your HTTP client or web browser to use a proxy on the returned port.įor more information on the features available in the REST API, see the REST API documentation. Here we use defineProperty like a validator. You get some extra granularity with an additional descriptor argument. DefinePropertyĭefineProperty is really similar to set, it’s called whenever fineProperty is called, but also when you try to set a property using =. If you don’t understand the code try copy/pasting it in your developer console and add some console.log() or try your own delayed functions. This is a bit tougher to chew than the other code snippets. So the set trap will call a function to execute before profile.firstName is set to 'Jack'. You are telling your JavaScript engine to call the ] internal method. ![]() Proxies allow you to intercept the execution of a given internal method. Whenever you interact with an object, you are calling an essential internal method. Traps are internal method detection tools. Maybe it’s because traps in the context of operating systems are synchronous and can interrupt the normal execution of the program. I’ve read everywhere that the word comes from the domain of operating systems (even Brendan Eich mentions it at JSConfEU 2010). These examples are not meant to be real world use cases, the goal is to help you understand how Proxy traps work. However, here we are going to look at all the traps you can use. Usually articles about traps always have the same examples to set private properties with proxies. ![]() In this article we are not going to get in to programming design patterns or get meta or even understand how proxies work. ![]() If you like meta programming you probably are already familiar with them. Proxies are a really cool JavaScript feature. ![]()
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